Long story short, I have done the stamping of the pores and checked it in the pore depth testing file. Looked ok. But when I bake, it turns out patchy, which I really do not understand why. I already tried redoing multiple times the stamping etc. but it does not improve a lot. The worst part is that when trying to use the skin material, the combination of the UV textures and the texture painted one looks very bad. Please, any advice?